CN101910074A - Glass-pane shaping-heating apparatus, and glass-pane bending-shaping method - Google Patents
Glass-pane shaping-heating apparatus, and glass-pane bending-shaping method Download PDFInfo
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- CN101910074A CN101910074A CN2008801233001A CN200880123300A CN101910074A CN 101910074 A CN101910074 A CN 101910074A CN 2008801233001 A CN2008801233001 A CN 2008801233001A CN 200880123300 A CN200880123300 A CN 200880123300A CN 101910074 A CN101910074 A CN 101910074A
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- hot line
- glass
- temperature distribution
- sheet glass
- heating source
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
- C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
- C03B29/08—Glass sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Provided is a glass-pane shaping-heating apparatus for preventing a heater distortion from occurring in the portion near the temperature distributing thermal shields of glass panes. The glass-pane shaping-heating apparatus comprises heating elements for heating glass panes, thermal shielding plates partitioning a heating region (Y) into a plurality of regions (X) so that a predetermined temperature distribution may be made in the surfaces of the glass panes to be heated by the heating elements, for shielding a portion of a radiant heat ray emitted from the heating elements toward the glass panes. In the glass-pane shaping-heating apparatus, heat ray adjusting means for reducing the radiant heat rays from the heating elements to reach such portions of the surfaces of the glass panes heated by the heating elements as are close to the thermal shielding plates is exemplified by auxiliary thermal shielding plates for shielding a portion of the radiant heat rays emitted from the heating elements toward such portions of the surfaces of the glass panes as are close to the thermal shielding plates.
Description
Technical field
The present invention relates to glass-pane shaping-heating apparatus and glass pane bending method, relate in particular to and be suitable for being used to from the radiation hot line of heating source the glass-pane shaping-heating apparatus of sheet glass heating with the temperature distribution that forms regulation, and after this heating with the glass pane bending method of glass plate bending.
Background technology
In the past, known being used to heated to form the device (for example with reference to patent documentation 1) of the temperature distribution of stipulating sheet glass from the radiation hot line of heating source.This device is at heating source and be heated between the heated glass plate of source and possess the heat shield plate that is adapted to this glass pane surface approximate vertical.This heat shield plate will be from edge in the radiation hot line of heating source with respect to the direction incident radiation hot radiation shielding of the surface tilt of sheet glass.Therefore, utilize said apparatus, can in sheet glass, form the thermograde of acute variation, can form desired temperature distribution.
Patent documentation 1: the Japanese Patent spy opens the 2005-343747 communique
The announcement of invention
But, in the above-mentioned patent documentation 1 described device, though heat shield plate have aforesaid will from the radiation hot line of heating source along function with respect to the direction incident radiation hot radiation shielding of the surface tilt of sheet glass, almost not will along with the function of the vertical direction incident of glass pane surface radiation hot line blocking-up.In this, only be provided with in the heating unit of above-mentioned heat shield plate, sheet glass be not positioned under the heat shield plate or near it position only from directly over the incident of radiation hot line, and be restricted from the incident of oblique radiation hot line.But, be positioned under the heat shield plate or near it position at sheet glass, from directly over and the incident of the radiation hot line of the heating source of oblique upper restricted hardly, so, because the existence of this heat shield plate, under it or its near sheet glass temperature than around higher, in its boudary portion generation thermal distortion.Especially for the precision of the temperature distribution that improves sheet glass and contract the distance between heating source and the sheet glass short more, then the thermal distortion that is taken place is remarkable more.Therefore, in the above-mentioned patent documentation 1 described device, the existence that is used to form the heat shield plate of temperature distribution becomes the big factor that forms temperature required distribution on the sheet glass that hinders.
The present invention is the invention of finishing in view of the above problems, even glass-pane shaping-heating apparatus and the glass pane bending method that exists the heat shield plate that is used to form temperature distribution also can form desired temperature distribution on sheet glass that provide is provided.
Above-mentioned purpose can realize that this device comprises by glass-pane shaping-heating apparatus as described below: heating source, and this heating source is used for heating glass plate; Temperature distribution thermoshield body, this temperature distribution is divided into a plurality of zones with the thermoshield body with heating region, and the part shielding of the radiation hot line that will send to sheet glass by described heating source, make the temperature distribution that is formed regulation by the surface of described heating source heated glass plate; It is characterized in that, comprise the hot line adjustment unit, this hot line adjustment unit reduces the radiation hot line of being used the very near position of thermoshield body from described heating source arrival the surface of described heating source heated glass plate from described temperature distribution.
In addition, above-mentioned purpose can realize by glass pane bending method as described below, this method is that sheet glass is carried on the bending mould of frame shape, the part shielding of the radiation hot line that the temperature distribution that utilization is divided into heating region a plurality of zones will be sent to sheet glass from heating source with the thermoshield body, heat this sheet glass on described sheet glass, to form the temperature distribution of regulation, the deadweight that utilizes sheet glass is with glass plate bending, it is characterized in that, comprise hot line adjustment operation, adjust in the operation at this hot line, on one side utilize described heating source that sheet glass is heated, reduce from described heating source and arrive the surface of this sheet glass from described temperature distribution radiation hot line with thermoshield body very near position on one side.
In the invention of above-mentioned form, it is to arrive the surface that is heated source heated glass plate from the radiation hot line of temperature distribution with the very near position of thermoshield body in order to reduce from heating source that hot line adjustment unit or hot line are adjusted operation.If this hot line adjustment unit or hot line are not adjusted the processing of operation, then directly over, under and all allow obliquely the radiation hot line of heating source be incident to sheet glass from temperature distribution with the very near position of thermoshield body, so be incident to comparing with the radiation hot line at the peripheral position beyond the very near position of thermoshield body of sheet glass from temperature distribution, be incident to that this is restricted hardly with the radiation hot line at the very near position of thermoshield body from temperature distribution.Relatively, if being arranged, above-mentioned hot line adjustment unit or hot line adjust the processing of operation, then be incident to reducing of sheet glass, it is equated with being incident to from the radiation hot line of temperature distribution with the very near peripheral position in addition, position of thermoshield body from the radiation hot line of temperature distribution with the very near position of thermoshield body.Therefore, utilize the present invention, can prevent sheet glass with the very near position of thermoshield body thermal distortion takes place from temperature distribution, even therefore there is the thermoshield body that is used to form temperature distribution, also can on sheet glass, form desired temperature distribution.Therefore, utilize glass pane bending method of the present invention, the sheet glass that can prevent to be carried on the bending mould of frame shape produces localized hyperthermia, can realize not taking place the glass-pane shaping of thermal distortion.
In the above-mentioned glass-pane shaping-heating apparatus, described hot line adjustment unit also can be a hot line adjustment thermoshield body, the part shielding of the radiation hot line that this hot line adjustment will be sent with the very near position of thermoshield body from described temperature distribution to the surface of sheet glass from described heating source with the thermoshield body.
In the invention of this form, the hot line adjustment thermoshield body of the part shielding of the radiation hot line that utilization will be sent with the very near position of thermoshield body from temperature distribution to the surface of sheet glass from heating source, can realize from this heating source arrive by the surface of this heating source heated glass plate from the minimizing of the radiation hot line at the very near position of temperature distribution usefulness thermoshield body.Therefore, utilize the present invention, can prevent sheet glass with the very near position of thermoshield body thermal distortion takes place from temperature distribution, even therefore there is the thermoshield body that is used to form temperature distribution, also can on sheet glass, form desired temperature distribution.
In addition, better be in the above-mentioned glass-pane shaping-heating apparatus, described hot line adjustment with the size of thermoshield body and allocation position by following condition enactment: described heating source send arrival by in the surface of described heating source heated glass plate from the useful area of described temperature distribution with the radiation hot line at the very near position of thermoshield body, the useful area of radiation hot line that arrives this peripheral position beyond the described temperature distribution position very near with the thermoshield body with sending of described heating source is unanimous on the whole.More specifically, it is unanimous on the whole to set the useful area of the radiation hot line at position under the central authorities that send the zone that arrival divided with the thermoshield body by described temperature distribution with described heating source for.
In addition, in the above-mentioned glass pane bending method, also can adjust in the operation at described hot line, heat described sheet glass under the following conditions: arrive the surface of described sheet glass from the radiation hot line of described temperature distribution from described heating source with the very near position of thermoshield body, unanimous on the whole with the radiation hot line that arrives this peripheral position beyond the described temperature distribution position very near with the thermoshield body.More specifically, also can heat described sheet glass under the following conditions: arrive from the radiation hot line of described temperature distribution from described heating source with the very near position of thermoshield body, unanimous on the whole with the radiation hot line at position under the central authorities in the zone of thermoshield body division with arrival by described temperature distribution.
In the invention of above-mentioned form, be incident to from the temperature distribution of sheet glass radiation hot line, and be incident to peripheral position beyond the temperature distribution position very near, particularly be that the radiation hot line that is incident near the central position in the zone of being divided with the thermoshield body by described temperature distribution is equal with the thermoshield body with the very near position of thermoshield body.Therefore, utilize the present invention, can prevent sheet glass with the very near position of thermoshield body thermal distortion takes place from temperature distribution, even therefore there is the thermoshield body that is used to form temperature distribution, also can on sheet glass, form desired temperature distribution.
In addition, in the above-mentioned glass-pane shaping-heating apparatus, also can with described temperature distribution with the thermoshield body be adapted to by the surperficial approximate vertical of described heating source heated glass plate, described hot line adjustment is fixed in described temperature distribution thermoshield body with the thermoshield body, be adapted to by the surperficial almost parallel of described heating source heated glass plate.
In the invention of this form, even there is the temperature distribution thermoshield body be adapted to the surperficial approximate vertical of sheet glass, utilization is adapted to the hot line adjustment thermoshield body with the surperficial almost parallel of this sheet glass, also can prevent sheet glass with the very near position of thermoshield body thermal distortion takes place from temperature distribution, therefore can on sheet glass, form desired temperature distribution.
In addition, the distance on surface that will be from described heating source to described sheet glass is made as a, and the width of described heating source is made as b, and described temperature distribution is made as c with the length of thermoshield body, and described temperature distribution is made as t with the thickness of thermoshield body
1, described hot line adjustment is made as t with the thickness of thermoshield body
2The time, described hot line adjustment is with the length L of thermoshield body and allocation position H, promptly satisfy following formula apart from described temperature distribution with the distance of the front end of thermoshield body:
In the invention of this form, can hot line adjustment thermoshield body be set with suitable size and position, can under the situation that does not reduce the radiation hot line at position under the central authorities that are incident to the zone of dividing with the thermoshield body by described temperature distribution, prevent sheet glass with the very near position of thermoshield body thermal distortion takes place from temperature distribution, therefore can under the situation of wasted heat not, on sheet glass, form desired temperature distribution.
Utilize the present invention, can prevent sheet glass with the very near position of thermoshield body thermal distortion takes place from temperature distribution, even therefore there is the thermoshield body that is used to form temperature distribution, also can on sheet glass, form desired temperature distribution.
The simple declaration of accompanying drawing
Fig. 1 is the one-piece construction figure as the process furnace that possesses glass-pane shaping-heating apparatus of one embodiment of the present of invention.
Fig. 2 is the figure of the heating region in the section of representing to be had by the shaping district of the glass-pane shaping-heating apparatus of present embodiment heating.
Fig. 3 is the stereographic map of major portion of the glass-pane shaping-heating apparatus of present embodiment.
Fig. 4 is with glass-pane shaping-heating apparatus shown in Figure 3 sectional view when the III-III line cuts off.
Fig. 5 is the major portion structure iron of the glass-pane shaping-heating apparatus of present embodiment.
Fig. 6 is the synoptic diagram of situation of the radiation hot line that heating source sent in the glass-pane shaping-heating apparatus of expression present embodiment.
Fig. 7 is the figure that is used to illustrate the effect that glass-pane shaping-heating apparatus produced of present embodiment.
Fig. 8 is the sectional view as the major portion of the glass-pane shaping-heating apparatus of variation of the present invention.
Fig. 9 be used to illustrate present embodiment the auxiliary heat shielding slab size and the figure of position is set.
Figure 10 is the figure that is used to illustrate as the glass-pane shaping-heating apparatus of variation of the present invention.
The explanation of symbol
10 glass-pane shaping-heating apparatus (heating unit)
12 process furnace
14 heating units
20 heat shield plates
22 thermoshield bodies
The G sheet glass
The X zone
The Y heating region
The Z2 district that is shaped
The best mode that carries out an invention
Describe with the embodiment of accompanying drawing below glass-pane shaping-heating apparatus of the present invention and glass pane bending method.
Fig. 1 is the one-piece construction figure of expression as the process furnace 12 that possesses glass-pane shaping-heating apparatus (below abbreviate heating unit as) 10 of one embodiment of the present of invention.The process furnace 12 of present embodiment utilize heating unit 10 with the sheet glass G that uses in the vehicles such as automobile or railway or the buildings etc. along prescribed direction (for example carry direction and with this both direction of the orthogonal orthogonal directions of this carrying direction) bending forming, and heat on this basis.
In the present embodiment, process furnace 12 forms tunnel-like, is made of preheating zone Z1, be shaped district Z2, annealed zone Z3 as shown in Figure 1.Sheet glass G is carried to preheating zone Z1 successively, is shaped and distinguishes Z2 and annealed zone Z3 by travelling belt.The carrying of sheet glass G can realize by bearing glass plate G and the carrying that has with the bending mould (being shown in Fig. 5) 16 of the desired curved shape of this sheet glass G curved shape unanimous on the whole.Among Fig. 5, sheet glass G is consistent with the shape of bending mould 16, but this just schematically expression also can become consistent gradually in forming process.
Each is distinguished Z1, Z2, Z3 and has a plurality of sections (among Fig. 1, preheating zone Z1 has 4 sections, and the district Z2 that is shaped has 8 sections, and annealed zone Z3 has 4 sections) of arranging along the carrying direction respectively.Each section has the size (area) that can move into a sheet glass G respectively.
Each is distinguished in each section of Z1, Z2, Z3 and is respectively equipped with the heating unit 10 that is used for heating glass plate G.Preheating zone Z1 is along district that the carrying direction of sheet glass G raises gradually to the Heating temperature of sheet glass G, the district Z2 that is shaped keeps the constant district to the Heating temperature of sheet glass G, and annealed zone Z3 is along district that the carrying direction of sheet glass G reduces gradually to the Heating temperature of sheet glass G.The heating unit 10 of each section constitutes can control the size that adds heat respectively independently.
Figure 2 shows that the figure of the heating region Y in the section that is had by the shaping district Z2 of heating unit 10 heating of present embodiment.In addition, Figure 2 shows that figure when observing a section with the orthogonal top of the carrying direction of sheet glass G.Figure 3 shows that the stereographic map of major portion of the heating unit 10 of present embodiment.Figure 4 shows that the sectional view of heating unit shown in Figure 3 10 when the III-III line cuts off.In addition, Fig. 3 and Figure 4 shows that the regional X that is divided that constitutes the heating region Y that each section had is arranged with 4 situation.Figure 5 shows that the major portion structure iron of the heating unit 10 of present embodiment.Figure when in addition, Figure 5 shows that heating unit 10 when carrying direction side is observed the sheet glass G of carrying bending forming.
As shown in Figure 2, the heating region Y that each section of district Z2 has the size (area) that can move into a sheet glass G respectively that is shaped.The heating region Y of each section is divided into respectively a plurality of (for example about 200) regional X.Among this heating region Y, regional X is configured to be arranged in groined type from the above-below direction observation with predetermined pattern.It is the shape of the square or rectangular about 50～200mm that a regional X for example has on one side.The pattern of regional X among the heating region Y is set at and can produces desired temperature distribution on a sheet glass G.In the heating unit 10 of each section of this district Z2 that is shaped, the regional X of each of heating region Y all has heating unit 14, constitutes to control the size that adds heat respectively independently.
The heating unit 10 of each section of shaping district Z2 possesses the heat shield plate 20 that is used for a heating region Y is divided into a plurality of regional X respectively.Heat shield plate 20 is that starting material are shaped with glass fibre, stainless steel, carbon cloth etc. for example, is installed in the inner-wall surface (top or siege) of process furnace 12 by retaining member.Heat shield plate 20 is to extending with top or siege approximate vertical, the below or the top that promptly are heated the horizontal plane approximate vertical of element 14 heated glass plate G with carrying, be adapted to groined type from the above-below direction observation, heating region Y is divided into a plurality of regional X that arranges with groined type.
The heat shield plate 20 that is installed on the inner-wall surface of process furnace 12 extends from the carrying face of this inner-wall surface to sheet glass G, has the above-below direction length (for example 100mm) of regulation.The distance that the end (lower end or upper end) of opposition side of inner-wall surface side of heat shield plate 20 and sheet glass G surface are installed is configured to reach the distance (for example 100mm) of regulation on above-below direction in the whole surface range of sheet glass G.Heat shield plate 20 has from the top or the function of the part (mainly being the radiation hot line along oblique irradiation) of the radiation hot line that sends of the heating unit 14 of siege shielding.
This possesses in the heating unit 10 of heat shield plate 20, from the radiation hot line that the heating unit 14 of top or siege sends along with respect to the direction incident radiation hot line of the surface tilt of sheet glass G by these heat shield plate 20 shieldings.Therefore, the radiation hot line that sends from the heating unit 14 of certain regional X is difficult for being incident to adjacent areas X, and its incident is suppressed.In addition, the regional X of each of heating region Y can control the size that adds heat respectively independently.Therefore, in the present embodiment, can in each regional X, control subtly the temperature distribution of the heating region Y among the district Z2 that is shaped respectively, therefore can give sheet glass G, and can make the sharpness of border of this temperature distribution with desired temperature distribution.
The heating unit 14 of each regional X is configured in and carries the corresponding upper-lower position of curved shape of the sheet glass G that comes respectively.That is, the distance of the heating unit 14 of the surface of sheet glass G and each regional X roughly keeps constant in the whole surface range of the sheet glass G of this bending forming.The sheet glass G that carrying comes is that the heating unit 14 of each regional X is configured to all along continuous straight runs arrangements on identical upper-lower position under the situation of smooth sheet glass.On the other hand, as shown in Figure 5, the sheet glass G that carrying comes be that the heating unit 14 of each regional X is configured to stop on the upper-lower position that differs from one another accordingly with the curved shape of this sheet glass G under the situation of sheet glass of bending.
In addition, under the situation of the sheet glass G that carrying is crooked, among the heating region Y of each section of process furnace 12, be equipped with lifting device (not shown) in a plurality of regional X of each regional X or regulation, the heating unit 14 of each regional X is respectively along with the action of caused each lifting device of instruction of controller and move up and down in the inner-wall surface that remains in process furnace 12.At this moment, controller sends the instruction that corresponding heating unit 14 is suitably moved up and down respectively according to the shape of sheet glass G bending forming to each lifting device.By this formation and processing controls, by curved shape the heating unit 14 of each regional X is moved up and down according to the next sheet glass G of carrying, even this curved shape changes, also can follow this variation the heating unit 14 of each regional X and the distance on sheet glass G surface are kept constant, therefore give sheet glass G easily with desired temperature distribution.At this moment, heat shield plate 20 also can move up and down with respect to this inner-wall surface in the inner-wall surface that remains in process furnace 12 (top or siege) along with moving up and down of heating unit 14.
In addition, carrying comes under the situation of sheet glass continuously, better is for example all heating region Y to be connected by a shelf, by making this shelf lifting, and can a lifting thereby all heating units 14 of the either party at least in the above and below are constituted.By above-mentioned formation, when sheet glass is moved into each section, can promptly enlarge the interval of heat shield plate up and down, can easily move into sheet glass.
In the formation of above-mentioned present embodiment, sheet glass G is cut out the shape of regulation after, one or more sheet glass is carried on the bending mould 16 overlappingly, move into process furnace 12.The sheet glass G that is moved into process furnace 12 is carried after moving into discontinuously, and it is stopped in each section.Then, sheet glass G at first is heated to about about 500 ℃ in the Z1 of preheating zone, heats in the district Z2 that is shaped then, makes sheet glass G form desired temperature distribution in the time period that stops at the section that pre-determines.If form this temperature distribution on sheet glass G, then this sheet glass G is configured as desired shape because of deadweight (gravity) is bent to the shape consistent with bending mould 16.Then, be configured as the sheet glass G slowly annealing in the Z3 of annealed zone subsequently of desired shape.
Figure 6 shows that the synoptic diagram of the situation of the radiation hot line that heating unit 14 is sent in the heating unit 10 of present embodiment.Figure 7 shows that the figure of the effect that the heating unit 10 that is used to illustrate present embodiment is produced.In addition, Fig. 7 (A) is depicted as the figure when in-plane is observed heating region Y a part of, and Fig. 7 (B) is depicted as the figure that the heating region Y shown in the Fig. 7 (A) of (dotted line) compares along the temperature distribution of IV-IV line along the temperature distribution of IV-IV line and when not having auxiliary heat shielding slab 22 described later of the heating region Y shown in the Fig. 7 (A) of when having auxiliary heat shielding slab 22 described later (solid line).
In addition, in the present embodiment, the heating unit 10 of each section of the district Z2 that is shaped possesses auxiliary heat shielding slab 22 respectively.Auxiliary heat shielding slab 22 is same with heat shield plate 20, is that starting material are made with glass fibre, stainless steel, carbon cloth etc. for example.Auxiliary heat shielding slab 22 and heat shield plate 20 are mounted on the whole girth of the inwall of this heat shield plate 20 integratedly, the cross section that makes the heating region Y surrounded by 4 heat shield plates 20 be had is among tetragonal each regional X, and the part of the internal space of this zone X, for example the horizontal sectional area of the prescribed position on its above-below direction reduces.Auxiliary heat shielding slab 22 is configured to from the inner-wall surface of heat shield plate 20 to extending with these heat shield plate 20 vertical directions, be adapted to top or siege almost parallel with process furnace, promptly be heated the horizontal plane almost parallel of element 14 heated glass plate G with carrying.
In addition, about the installation of auxiliary heat shielding slab 22 on heat shield plate 20, if can reduce the total radiation hot line that arrives sheet glass G from heating unit 14 by the existence of this auxiliary heat shielding slab 22 from the very near position of heat shield plate 20, make this total radiation hot line unanimous on the whole, then also can not be located at the whole girth of the inwall of this heat shield plate 20 with the total radiation hot line that arrives its peripheral position.That is, also can be one side or its part of regional X.
The size of the auxiliary heat shielding slab 22 of each regional X and the allocation position on heat shield plate 20 are by following condition enactment: the sending of heating unit 14 arrive the vicinity that is positioned at heat shield plate 20 in the surface that is heated element 14 heated glass plate G (under or directly over) the position (with heat shield plate 20 up and down direction extend and the position of intersecting; Note is done from the very near position of heat shield plate 20 below) the useful area of radiation hot line, the useful area of radiation hot line that arrives this peripheral position (central part) beyond the very near position of heat shield plate 20 with sending of heating unit 14 is unanimous on the whole.Each should zone X auxiliary heat shielding slab 22 size with the allocation position on the heat shield plate 20 according to the distance between the inwall in opposite directions of heat shield plate 20 with to the distance of sheet glass G and different.
For example, for arriving near the central part G1 the central authorities between the heat shield plate 20 of sheet glass and the radiation hot line from the very near position G2 of heat shield plate 20 of sheet glass, make under the situation that the useful area that sends these radiation hot lines of heating unit 14 equates, the distance on surface that will be from heating unit 14 to sheet glass G is made as a, the width of heating unit 14 is made as b, the length of heat shield plate 20 is made as c, then the length L on the horizontal direction of auxiliary heat shielding slab 22 and try to achieve by following formula apart from the distance H of the front end of heat shield plate 20.
At this moment, if the interval a of the surface of heating unit 14 and sheet glass G on above-below direction is 250mm, the width b of heating unit is 100mm, the length c of heat shield plate 20 on above-below direction is 100mm, then auxiliary heat shielding slab 22 is constructed such that the length L on the horizontal direction that is installed on a heat shield plate 20 is about 12.5mm, and its allocation position is the position apart from about the lower end of heat shield plate 20 or the upper end 37.5mm.L that tries to achieve and H are that near the value the degree of harmless the application's effect gets final product.
In addition, need to consider the thickness t of heat shield plate 20
1Thickness t with auxiliary heat shielding slab 22
2The time, try to achieve by following formula.The relation of symbol as shown in Figure 9.
Thereby the part shielding that auxiliary heat shielding slab 22 has by the radiation hot line that will send from the very near position of heat shield plate 20 in the surface that is heated element 14 heated glass plate G reduces from heating unit 14 these functions from the radiation hot line at the very near position of heat shield plate 20 of arrival.Particularly, auxiliary heat shielding slab 22 have restriction be arranged in directly over or under the surface of the radiant heat alignment sheet glass G that heating unit 14 produced allow to be positioned at the incident function of the radiation hot line that the heating unit obliquely 14 of regulation produced from the very near position incident of heat shield plate 20.
If heating unit 10 does not possess this auxiliary heat shielding slab 22 and only possesses heat shield plate 20, then heating unit 14 that the radiation hot line is incident to from the useful area of the very near sheet glass G of this heat shield plate 20 is excessive, therefore may cause this thermal distortion (temperature distribution shown in the dotted line among Fig. 7 (B) to take place because of the existence of this heat shield plate 20 from the very near sheet glass G of heat shield plate 20; The special zone of irising out with reference to dashed lines).
Relative with it, possess in the heating unit 10 of above-mentioned auxiliary heat shielding slab 22, the radiation hot line that is incident to the surface of sheet glass G the position (central part G1) beyond the very near position G2 of heat shield plate 20 from heating unit 14 is difficult for being subjected to the influence that has or not of this auxiliary heat shielding slab 22, on the other hand, be incident to the surface of sheet glass G to compare with the heating unit 10 that does not possess this auxiliary heat shielding slab 22 to some extent from heating unit 14 and reduce from the radiation hot line of the very near position G2 of heat shield plate 20, therefore can make its with the radiation hot line that is incident to this central part G1 beyond the very near position G2 of heat shield plate 20 about equally.That is, can make sending of heating unit 14 be incident to sheet glass G to be incident to useful area of radiation hot line of this central part G1 beyond the very near position G2 of heat shield plate 20 from sending of the useful area of the radiation hot line of the very near position G2 of heat shield plate 20 and heating unit 14 unanimous on the whole.
Therefore, utilize the heating unit 10 of present embodiment, can prevent because of being used for causing near the generation thermal distortion very near position G2 of this heat shield plate 20 of sheet glass G in the existence of the heat shield plate 20 of formation temperature distribution on the sheet glass G.Therefore, utilize the heating unit 10 of present embodiment, be used for the heat shield plate 20 that formation temperature distributes on sheet glass G even exist, also can utilize the existence of the auxiliary heat shielding slab 22 that is installed on this heat shield plate 20 and on sheet glass G, form desired temperature distribution, consequently, sheet glass G can be configured as desired shape.
In the foregoing description, heating unit 14 is equivalent to " heating source " described in claims, heat shield plate 20 is equivalent to " the temperature distribution thermoshield body " described in claims, and auxiliary heat shielding slab 22 is equivalent to " the hot line adjustment unit " described in claims and " hot line adjustment thermoshield body ".
In addition, in the foregoing description, the auxiliary heat shielding slab 22 that is used for the part shielding of the radiation hot line that will send from the very near position of heat shield plate 20 to the surface of heated sheet glass G from heating unit 14 is installed in heat shield plate 20, make its from the inner-wall surface of this heat shield plate 20 to extending with heat shield plate 20 vertical directions, and extend to the direction that roughly is level with respect to the surface that is heated element 14 heated glass plate G.But, this auxiliary heat shielding slab 22 is not limited to this shape, as long as sending of heating unit 14 arrived in the surface be heated element 14 heated glass plate G arrive this useful area unanimous on the whole, also can acting in accordance with YIN YANG changes in four seasons portion be installed on heat shield plate 20 towards the form of oblique extension from the radiation hot line at the very near peripheral position in addition, position of heat shield plate 20 from the useful area of the radiation hot line at the position of heat shield plate 20 very near (heat shield plate 20 under or directly over) and sending of heating unit 14.Figure 8 shows that the cross-sectional shape of the major portion of the above-mentioned heating unit 10 that possesses auxiliary heat shielding slab 22.In this variation, be incident to from heating unit 14 that the radiation hot line from the very near position G2 of heat shield plate 20 also reduces the surface of sheet glass G, therefore can prevent near the generation thermal distortion of sheet glass G from the very near position G2 of heat shield plate 20.
In addition, in the foregoing description, be to reduce from heating unit 14 arriving the surface of heated sheet glass G, be provided with and be used for from the auxiliary heat shielding slab 22 of heating unit 14 to the part shielding of this radiation hot line that sends from the very near position of heat shield plate 20 from the radiation hot line at the very near position of heat shield plate 20.But, the present invention is not limited to this, and setting can be during not reducing the surface that arrives sheet glass G from heating unit 14 reduces under the situation of the radiation hot line at the position beyond the very near position of heat shield plate 20 and arrives these hot line adjustment units from the radiation hot line at the very near position of heat shield plate 20 from heating unit 14 and get final product.
Can exemplify following example.As shown in figure 10, heating unit 14 and sheet glass G surface be under the positive integer situation doubly of length c of heat shield plate 20 apart from a, even do not possess auxiliary heat shielding slab 22, each the radiation hot line that is incident to central part G1 and contiguous position G2 is also about equally.But, this is a situation of only considering a direction, as if the length difference of the orthogonal directions of the heat shield plate 20 of the regional X of formation shown in Fig. 7 (A), then on other direction, it is different with each radiation hot line of contiguous position G2 to be incident to central part G1, needs the application's auxiliary heat shielding slab 22.
Promptly, a kind of method as the hot line adjustment, overlook down for square if will be made as by the regional X that heat shield plate 20 is divided, with heating unit 14 and sheet glass G surface apart from a be made as heat shield plate 20 length c positive integer doubly, then can make be incident to central part G1 and contiguous position G2 each radiation hot line about equally, can solve the application's problem.
The possibility of utilizing on the industry
The present invention is applicable to tight Temperature Distribution heating glass plate and carries out bending forming, can be used for the manufacturing of the glass plate that uses in the vehicles such as automobile or railway or the building etc.
In addition, quote the announcement of all the elements of Japanese patent application 2007-340826 number specification sheets, claims, accompanying drawing and the summary of filing an application on December 28th, 2007 here as specification sheets of the present invention.
Claims (11)
1. glass-pane shaping-heating apparatus, this device comprises: heating source, this heating source is used for heating glass plate; Temperature distribution thermoshield body, this temperature distribution is divided into a plurality of zones with the thermoshield body with heating region, and the part shielding of the radiation hot line that will send to sheet glass by described heating source, make the temperature distribution that is formed regulation by the surface of described heating source heated glass plate; It is characterized in that,
Comprise the hot line adjustment unit, this hot line adjustment unit reduces the radiation hot line of being used the very near position of thermoshield body from described heating source arrival the surface of described heating source heated glass plate from described temperature distribution.
2. glass-pane shaping-heating apparatus as claimed in claim 1, it is characterized in that, described hot line adjustment unit is a hot line adjustment thermoshield body, the part shielding of the radiation hot line that this hot line adjustment will be sent with the very near position of thermoshield body from described temperature distribution to the surface of sheet glass from described heating source with the thermoshield body.
3. glass-pane shaping-heating apparatus as claimed in claim 2, it is characterized in that, described hot line adjustment with the size of thermoshield body and allocation position by following condition enactment: described heating source send arrival by in the surface of described heating source heated glass plate from the useful area of described temperature distribution with the radiation hot line at the very near position of thermoshield body, the useful area of radiation hot line that arrives this peripheral position beyond the described temperature distribution position very near with the thermoshield body with sending of described heating source is unanimous on the whole.
4. glass-pane shaping-heating apparatus as claimed in claim 2, it is characterized in that, described hot line adjustment with the size of thermoshield body and allocation position by following condition enactment: described heating source send arrival by in the surface of described heating source heated glass plate from the useful area of described temperature distribution with the radiation hot line at the very near position of thermoshield body, unanimous on the whole with near the useful area of the radiation hot line at the position central authorities that send the zone that arrival divided with the thermoshield body by described temperature distribution of described heating source.
5. as each the described glass-pane shaping-heating apparatus in the claim 2～4, it is characterized in that,
Described temperature distribution with the thermoshield body be adapted to by the surperficial approximate vertical of described heating source heated glass plate,
Described hot line adjustment is fixed in described temperature distribution thermoshield body with the thermoshield body, be adapted to by the surperficial almost parallel of described heating source heated glass plate.
6. glass-pane shaping-heating apparatus as claimed in claim 5, it is characterized in that, the distance on surface that will be from described heating source to described sheet glass is made as a, the width of described heating source is made as b, described temperature distribution is made as c with the length of thermoshield body, described temperature distribution is made as t with the thickness of thermoshield body
1, described hot line adjustment is made as t with the thickness of thermoshield body
2The time, described hot line adjustment is with the length L of thermoshield body and allocation position H, promptly satisfy following formula apart from described temperature distribution with the distance of the front end of thermoshield body:
7. glass pane bending method, this method is that sheet glass is carried on the bending mould of frame shape, the part shielding of the radiation hot line that the temperature distribution that utilization is divided into heating region a plurality of zones will be sent to sheet glass from heating source with the thermoshield body, heat this sheet glass on described sheet glass, to form the temperature distribution of regulation, the deadweight that utilizes sheet glass is with glass plate bending, it is characterized in that
Comprise that hot line adjusts operation, adjust in operation at this hot line, utilize described heating source that sheet glass is heated on one side, minimizing on one side arrives the surface of this sheet glass radiation hot line from the very near position of described temperature distribution usefulness thermoshield body from described heating source.
8. glass pane bending method as claimed in claim 7, it is characterized in that, adjust in the operation at described hot line, heat described sheet glass under the following conditions: arrive the surface of described sheet glass from the radiation hot line of described temperature distribution from described heating source with the very near position of thermoshield body, unanimous on the whole with the radiation hot line that arrives this peripheral position beyond the described temperature distribution position very near with the thermoshield body.
9. glass pane bending method as claimed in claim 7, it is characterized in that, adjust in the operation at described hot line, heat described sheet glass under the following conditions: arrive the surface of described sheet glass from the radiation hot line of described temperature distribution from described heating source with the very near position of thermoshield body, unanimous on the whole with the radiation hot line at position under the central authorities that arrive the zone of dividing with the thermoshield body by described temperature distribution.
10. as each the described glass pane bending method in the claim 7～9, it is characterized in that, adjust in the operation at described hot line, the zone of being divided with the thermoshield body by described temperature distribution is square when overlooking, and the distance of described heating source and glass pane surface is described temperature distribution with the positive integer of the length of thermoshield body doubly.
11. glass pane bending method, it is characterized in that, sheet glass is carried on the bending mould of frame shape, adopt each the described glass-pane shaping-heating apparatus in the claim 1～6 to heat this sheet glass to form the temperature distribution of regulation on described sheet glass, the deadweight that utilizes sheet glass is with glass plate bending.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007340826 | 2007-12-28 | ||
| JP2007-340826 | 2007-12-28 | ||
| PCT/JP2008/073834 WO2009084674A1 (en) | 2007-12-28 | 2008-12-26 | Glass-pane shaping-heating apparatus, and glass-pane bending-shaping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101910074A true CN101910074A (en) | 2010-12-08 |
| CN101910074B CN101910074B (en) | 2012-12-26 |
Family
ID=40824387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801233001A Expired - Fee Related CN101910074B (en) | 2007-12-28 | 2008-12-26 | Glass-pane shaping-heating apparatus, and glass-pane bending-shaping method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8418502B2 (en) |
| EP (1) | EP2233443B1 (en) |
| JP (1) | JP5359887B2 (en) |
| KR (1) | KR101528948B1 (en) |
| CN (1) | CN101910074B (en) |
| WO (1) | WO2009084674A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058580A (en) * | 2014-05-08 | 2014-09-24 | 嘉善冠得光学玻璃有限公司 | Device and method for preparing spherical mirror from large-size optical glass flat mirror by hot working |
| CN104159856A (en) * | 2011-11-22 | 2014-11-19 | 康宁股份有限公司 | Methods and apparatus for localized heating and deformation of glass sheets |
| CN104159856B (en) * | 2011-11-22 | 2016-11-30 | 康宁股份有限公司 | For the heating of glass plate local and the method and apparatus of deformation |
| CN106536432A (en) * | 2014-05-23 | 2017-03-22 | 康宁股份有限公司 | Radiation shield for shaping thin glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI499564B (en) * | 2010-08-30 | 2015-09-11 | Corning Inc | Apparatus and method for shaping a glass substrate |
| EP2463248A1 (en) | 2010-12-13 | 2012-06-13 | Saint-Gobain Glass France | Method and device for bending sheets |
| EP2463247A1 (en) * | 2010-12-13 | 2012-06-13 | Saint-Gobain Glass France | Method and device for bending discs |
| JP5819436B2 (en) | 2010-12-13 | 2015-11-24 | サン−ゴバン グラス フランス | Curved window plate |
| KR101495762B1 (en) * | 2012-04-09 | 2015-02-25 | 주식회사 엘지화학 | Float bath and glass manufacturing apparatus |
| KR102054730B1 (en) | 2015-08-18 | 2019-12-11 | 쌩-고벵 글래스 프랑스 | Glass bending method using glass bending device and fan |
| MX2018000760A (en) | 2015-09-08 | 2018-05-15 | Saint Gobain | Overpressure-assisted gravity bending method device suitable therefor. |
| PE20180975A1 (en) | 2015-11-25 | 2018-06-14 | Saint Gobain | GRAVITY BENDING METHOD ASSISTED BY OVERPRESSURE AND APPROPRIATE DEVICE FOR SAME |
| PT3408233T (en) | 2016-01-28 | 2019-11-22 | Saint Gobain | Over-pressure assisted glass bending method and device suited for carrying out this method |
| MX2019008998A (en) * | 2017-01-30 | 2019-10-09 | Saint Gobain | Method for bending a glass pane. |
| KR102458044B1 (en) * | 2021-03-03 | 2022-10-25 | 주식회사 에피온 | Apparatus of fabricating vacuum glass module and fabricating method using the same |
| KR102557819B1 (en) * | 2021-11-10 | 2023-07-20 | 주식회사 도우인시스 | Method of manufacturing multi-curvature window glass for CID |
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| US4687501A (en) * | 1986-04-21 | 1987-08-18 | Ppg Industries, Inc. | Lightweight bending iron heat shields for glass bending molds |
| DE68919429T2 (en) | 1988-02-25 | 1995-05-11 | Asahi Glass Co Ltd | Method and device for bending glass sheets for laminated glass. |
| ES2121976T3 (en) | 1992-06-10 | 1998-12-16 | Novartis Ag | CONTAINER DEVICE FOR CONTACT LENSES. |
| JPH0651249U (en) * | 1992-12-24 | 1994-07-12 | セントラル硝子株式会社 | Glass plate bending device |
| GB9326288D0 (en) * | 1993-12-23 | 1994-02-23 | Pilkington Glass Ltd | Glass bending system |
| JP4457438B2 (en) * | 1999-09-27 | 2010-04-28 | 旭硝子株式会社 | Glass plate bending apparatus and method |
| DE10047576A1 (en) * | 2000-09-22 | 2002-04-18 | Schott Glas | Production of glass ceramic parts and/or glass parts comprises deforming a glass ceramic blank and/or a glass blank using IR radiation |
| JP2005343747A (en) | 2004-06-03 | 2005-12-15 | Nippon Sheet Glass Co Ltd | Method and apparatus for bending plate glass |
-
2008
- 2008-12-26 JP JP2009548113A patent/JP5359887B2/en active Active
- 2008-12-26 KR KR1020107010240A patent/KR101528948B1/en not_active IP Right Cessation
- 2008-12-26 CN CN2008801233001A patent/CN101910074B/en not_active Expired - Fee Related
- 2008-12-26 EP EP08866546.8A patent/EP2233443B1/en not_active Not-in-force
- 2008-12-26 WO PCT/JP2008/073834 patent/WO2009084674A1/en active Application Filing
-
2010
- 2010-06-28 US US12/824,997 patent/US8418502B2/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159856A (en) * | 2011-11-22 | 2014-11-19 | 康宁股份有限公司 | Methods and apparatus for localized heating and deformation of glass sheets |
| CN104159856B (en) * | 2011-11-22 | 2016-11-30 | 康宁股份有限公司 | For the heating of glass plate local and the method and apparatus of deformation |
| CN104058580A (en) * | 2014-05-08 | 2014-09-24 | 嘉善冠得光学玻璃有限公司 | Device and method for preparing spherical mirror from large-size optical glass flat mirror by hot working |
| CN106536432A (en) * | 2014-05-23 | 2017-03-22 | 康宁股份有限公司 | Radiation shield for shaping thin glass |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2233443A4 (en) | 2011-01-26 |
| JPWO2009084674A1 (en) | 2011-05-19 |
| EP2233443A1 (en) | 2010-09-29 |
| WO2009084674A1 (en) | 2009-07-09 |
| EP2233443B1 (en) | 2013-07-03 |
| US20100257900A1 (en) | 2010-10-14 |
| US8418502B2 (en) | 2013-04-16 |
| CN101910074B (en) | 2012-12-26 |
| JP5359887B2 (en) | 2013-12-04 |
| KR101528948B1 (en) | 2015-06-15 |
| KR20100112547A (en) | 2010-10-19 |
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Address after: Tokyo, Japan Patentee after: AGC Corporation Address before: Tokyo, Japan Patentee before: Asahi Glass Co., Ltd. |
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